When Bertrand Russell read this book he said: "This was one of the great events of my life, as dazzling as first love. I had not imagined that there was anything so delicious in the world"

The Works of Archimedes

Many authorities consider Archimedes one of the greatest mathematicians and engineers of the Ancient world. He uses mathematical and practical tricks to measure figures and other stuff (for example the spiral).

René Descartes -The Geometry

Descartes united algebra and geometry by translating algebraic equations into geometrical figures.